Magnetic toothbrush support assembly



FIG. 1 is a perspective view of a magnetic toothbrush support assembly, showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a right side elevational view thereof, the opposite side being identical thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof.

The broken-line disclosure of toothbrushes, a wall-fragment, and wall-mounting screws in the views is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a magnetic toothbrush support assembly, as shown and described. 